M35 Cobalt Step Drill 4-12/4-20/4-32mm HSS Drill Bits Triangle Shank For Stainless Steel

Description M35 Cobalt Step Drill 4 12 4 20 4 32mm HSS Drill Bits Triangle Shank For Stainless SteelSpecification Product NameHSS Co M35 Cobalt Triangle Shank Step Drill BitMaterialM35 High speed steel containing cobaltShankTriangle ShankTroughSpiral trough straight troughType Type A Straight Flute 4 20mmType B Spiral Flute 4 20mmType C Straight Flute 4 32mmType D Spiral Flute 4 32mmType E Straight Flute 4 12mm 5 Steps Type F Straight Flute 4 12 9 Steps Type G Spiral Flute 4 12 9 Steps 4 12 mm 5 Steps 4 6 8 10 12 mm4 12 mm 9 Steps 4 5 6 7 8 9 10 11 12 mm4 20 mm 9 Steps 4 6 8 10 12 14 16 18 20 mm4 32 mm 15 Steps 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 mmQuantity1 Pc x Step Drill BitFeatures 1 118° X Bit Design you can drill from any angle no slipping 2 Triangle shank make more stable clamping 3 Plated cobalt coating a substantial increase in the wear resistance and oxidation resistance 4 M35 cobalt step drill HSS Co is a high hardness step drill bit that is mainly applied for drilling high hardness steel such as iron aluminum and steel less than 5 mm thickness and stainless steel less than 1 mm thickness 5 Scope of application the products can be used in automobile processing aerospace sheet metal processing electrical installation and maintenance industries Meanwhile the products are easy to carry and can meet the needs of high altitude operation with electric hand drill and other tools Note 1 Continuous cooling is required during operation to prot